Twin-to-Twin Transfusion Syndrome Clinical Presentation

Updated: Apr 02, 2020
  • Author: Lisa E Moore, MD, MS, FACOG, RDMS; Chief Editor: Ronald M Ramus, MD  more...
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The following clinical features raise suspicion for twin-twin transfusion syndrome (TTTS):

  • Known monochorionic-diamniotic gestation
  • Known or suspected difference in fetal weights
  • Known or suspected difference in the amount of amniotic fluid in each amniotic sac
  • Rapidly expanding abdomen as fluid accumulates in the sac of the recipient twin

Physical Examination

Fundal height larger than dates is a common finding because of the production of excess amniotic fluid by the recipient twin.